Paraffining apparatus.



No. 767,026. PATENTED AUG. 9, 1904. E. L. WHITE.

PARAFFINING APPARATUS. v

APPLICATION FILED AUG. 8. 1908 N0 MODEL.

UNITED STATES Patented August 9, 1904.

PATENT OFFICE.

. PARAFFINING APPARATUS.

SPECIFICATION forming part of Letters Patent No. 767,026, dated August9, 190%.

Application filed August 8, 1908.

To all, whom it may concern:

Be it known that I, EDWARD L. WHITE, a citizen of the United States ofAmerica, residing at Englewood, in the county of Bergen and State of NewJersey, have invented certain new and useful Improvements in ParafliningApparatus, of which the following is a specification, reference beinghad to the accompanying drawings, forming a part thereof.

My invention relates to improvements in paraflining apparatus, andparticularly in apparatus arranged for supplying parafiin to paper tubesin the manufacture Ofartificial straws.

In the manufacture of artificial straws by forming a continuous tube andcutting same off into lengths the size of the finished straw it isimpracticable to attempt to dip the tube or to pass same through theparaffin in a bath thereof. I have therefore designed the apparatusherein with a view to passing the tube over the bath of paraffin andsupplying a pre determined quantity thereto by feeding-rollers partiallyimmersed in the liquid paraflin and engaging the said tube. I havefurther provided means for supplying ail-additional quantity of paraffinto the tube at the joint, this being desirable for the purpose ofstiffening the tube at this point and rendering the joint entirelywaterproof.

To these ends my invention consists in certain novel details ofconstruction and combination of parts, as fully described andillustrated herein.

I will now proceed to describe a paralfining apparatus embodying myinvention and will then point out the novel features in claims.

In the drawings, Figure 1 is a top view of a paraifining apparatusembodying my invention. Fig. 2 is a view in central verticallongitudinal section of same. Fig. 3 is a view in transverse verticalsection, the plane of section being taken substantially upon the line 33 of Fig. 2. Fig. 4 is a diagrammatic View, on an enlarged scale,showing the paper tube, and particularly the joint therein and therelation of the feed-wheels thereto.

Referring to the embodiment of my invention illustrated in the drawingsand to the parts therein by their designating reference Serial No.168,720. (No model.)

characters, (0 represents a tank arranged to contain paraliin which iskept in a liquid condition by a heater or burner Z). The paper tube 0 isarranged to pass through the said tank above the normal level of theparaffin, and feeding devices are arranged to convey the paraflin fromthe tank to the said tube. These feeding devices comprise a plurality ofrollers (Z, two of which are mounted to rotate about vertical studs 0,rigidly secured to a bearing-stripf, and two of which are mounted torotate about vertical studs 57, secured to the ends of arms 7t, pivotedat '11 to the said tank. The rollers carried by the arms /i are pressedtoward those carried by the strip f by means of coil-springs j with ayielding pressure. The faces of the rollers cl are composed of anabsorbent material, and their lower ends are constantly immersed in theliquid paraffin in the said tank a. Capillary attraction causes theparaffin to saturate the rollers from one end to the other, and the tube0 is arranged to pass between the said rollers, and thereby receives acoating of paraffin therefrom. This arrangement of feeding-wheels forthe tube a has the effect of supplying the tube with a substantiallyuniform coat of paraflin throughout. It is found desirable, l10\ ever,to supply a larger quantity of paraflin to one portion of the tube thanto the other, such portion being at the lapped joint or seam. of thetube, and for this purpose I have provided supplementary feed-wheels k,arranged in contact with the tube at the jointed portion thereof. (Seeparticularly Fig. 4:.) I have provided a small supply-wheel Z, partiallyimmersed at its lower side in the paraffin and in contact at its upperside with the lower side of the wheel 70. Movement of the tube 0 causesrotation of the wheels (Z and of the wheel I), the wheel in transmittingits movement to the supply-wheel Z. The supply-wheel Z will thuscontinuously supply paraffin to the wheels 71;, causing the same tobecome saturated throughout by capillary attraction, and thustransmitting the desired quantity of paraffin to that part of the tubeengaged by the said wheel is. The wheels I: and Z are journaled inbearings carried by the strip f, and so far I have not found itnecessary to supply spring tension thereto. I may, of course, supplysuch spring tension, if desired, within the spirit and scope of myinvention in a similar manner tothat supplied to the feed-wheels (Z.

While for simplicity I have described my present invention as adaptedfor the purpose of applying parafl in, it is of course to be understoodthat it may be employed for applying other material and that theapparatus is in no sense limited to the application of paraffin alone.

What I claim is 1. In a paraflining apparatus, the combination with aparaflining-tank, of a plurality of feed-wheels each rotatable about avertical axis and having their lower ends immersed in the paraffin insaid tank, the faces of said whleels being composed of an absorbentmateria 1 2. In a paraf'fining apparatus, the combination with aparafiining-tank, of a plurality of feed-wheels each rotatable about avertical axis and having their lower ends immersed in the parafiin insaid tank, the faces of said wheels being composed of an absorbentmaterial, said wheels being spring-pressed toward each other.

3. In a parafiining apparatus, the combination with a paraffining-tank,of a plurality of feed-wheels each rotatable about a vertical axis andhaving their lower ends immersed in the parafiin in said tank, the facesof said wheels being composed of an absorbent material, and asupplementary feed-wheel rotating about an axis transverse of the axisof the first said feed-wheel.

i. In a parafiining apparatus, the combination with a paraflining-tank,of a plurality of feed-wheels each rotatable about a vertical axis andhaving their lower ends immersed in the paraflin in said tank, the facesof said wheels being composed of an absorbent material, a supplementaryfeed wheel rotating about an axis transverse of the axis of the firstsaid feed-wheel, and a supply-wheel for the said supplementaryfeed-wheel.

5. In a parafiining apparatus, the combination with a tank a, throughwhich a tube is adapted to be fed, and adapted to contain liquidparafiin, of feed-wheels (Z each mounted to rotate about a verticalaxis, and arranged to be partially immersed in the said liquid, asupplementary feed-wheel k mounted to rotate about a horizontal axis,and arranged above the point at which the tube is adapted to passthrough the said tank, and a supplywheel Z arranged to be partiallyimmersed in the paraflin and to be in contact with the saidsupplementary feed-wheel, the faces of all the said wheels beingcomposed of absorbent material.

EDWARD L. WHITE.

Witnesses:

CHAS. D. STAINTON, JAMEs C. CHAPIN.

